M850 FEATURES
- 2 ¼” FRONT MOUNT
- TWO BUTTON CONTROL SYSTEM
- GREENWICH MEAN TIME
- LOCAL TIME
- FLIGHT TIME WITH ALARM
- ELAPSED TIME WITH COUNTDOWN TIMER
- ELAPSED TIME ALARM
- OPTION AUDIO ALARM
- BRIGHT SUNLIGHT READABLE DISPLAY
- AUTOMATIC DIMMING
- ILLUMINATED BUTTONS AND ANNUNCIATORS
- NVIS GREEN A OPTION
- KEEP ALIVE BATTERY OPTION
- FAA-PMA APPROVED
SPECIFICATIONS
- Greenwich Mean Time: 24 hour format
- Local Time: 12 hour or 24 hour option
- Flight Time: Records in hours and minutes, up to 99:59, 99.99 hour option
- Flight Time Alarm: Full set range flight time
- Elapsed Time Count Up: Starts in minutes and seconds, then hours and minutes, up to 99:59 hours
- Elapsed Time Countdown: Settable from one second to 59 minutes and 59 seconds
- Elapsed Time Alarm: Activates at zero when counting down
- Incandescent Displays: Readable in sunlight
- Automatic Dimming
- Battery Type: N size alkaline Model 850
- Battery Type: AA size alkaline Model 877
- Keep Alive Current: .00004 amps
- Input Current: 0.2 Amps
- Input Voltage: 14 to 28 Volts (backlight available 5V, 14V, or 28V lighting – must specify when ordering)
- NVIS Option: NVIS Green A lighting
- Black Face Plate: Engraved Nomenclature
- Grey Face Plate: Silkscreened Nomenclature
- Weight: 5 ounces
- Warranty: 1 year
Davtron Inc has determined that installation of all Davtron products are considered minor according to (FAR) 21.93(a). All of our units are similar in design, with their electrical, mounting size, and weight being similar. Even though we consider installation of Davtron products to be minor, it is up to the installing mechanic to determine if the installation is minor or major. For a minor, a maintenance log book entry is all that is required. The FAA has determined that the installation of replacement clocks in non-transport category airplanes is considered to be minor, therefore only a maintenance log book entry is required referencing letter 100S-GA-10-53 from the FAA. For a major installation on a non PMA approved airframe, a FAA 337 form should be filed with your local FSDO and a possible field approval done. FAA PMA# PQ1062NM
INSTALLATION ELIGIBILITY
- Israel Aircraft Industries Model 1125 Astra and Galaxy
| 850-5V | GMT, LT, FT, & ET LED CLOCK 5V ILLUMINATING BUTTONS (FRONT MOUNT) |
| 850A-5V | 850-5V-WITH GREY FACEPLATE |
| 850-5V-NVG | 850-5V WITH NIGHT VISION COMPATIBILITY (GREEN A) |
| 850-2-5V-NVG | 850-5V INTERNAL MOUNT WITH NIGHT VISION COMPATIBILITY (GREEN A) |
| 850A-5V-NVG | 850A-5V-NVG WITH GRAY FACEPLATE |
| 850-14V | GMT, LT, FT, & ET LED CLOCK 14V ILLUMINATING BUTTONS (FRONT MOUNT) |
| 850A-14V | 850-14V WITH GRAY FACEPLATE |
| 850-14V-NVG | 850-14V WITH NIGHT VISION COMPATIBILITY (GREEN A) |
| 850-2-14V-NVG | 850-14V INTERNAL MOUNT WITH NIGHT VISION COMPATIBILITY (GREEN A) |
| 850A-14V-NVG | 850A-14V-NVG WITH GRAY FACEPLATE |
| 850-28V | GMT, LT, FT, & ET LED CLOCK 28V ILLUMINATING BUTTONS (FRONT MOUNT) |
| 850A-28V | 850-28V WITH GRAY FACEPLATE |
| 850-28V-NVG | 850-28V WITH NIGHT VISION COMPATIBILITY (GREEN A) |
| 850-2-28V-NVG | 850-28V INTERNAL MOUNT WITH NIGHT VISION COMPATIBILITY (GREEN A) |
| 850A-28V-NVG | 850A-28V-NVG WITH GRAY FACEPLATE |
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